Other Assets (Real Estate Owned - Activity) (Details) $ in Thousands	12 Months Ended
Dec. 31, 2019 USD ($) property	Dec. 31, 2018 USD ($) property	Dec. 31, 2017 USD ($)
Real Estate Owned [Roll Forward]
Balance at beginning of period	$ 249,413	$ 152,356
Adjustments to record at lower of cost or fair value	(14,884)	(15,929)
Transfer from residential whole loans	257,701	215,038	$ 136,734
Purchases and capital improvements	20,746	13,367
Disposals	(101,317)	(115,419)
Balance at end of period	$ 411,659	$ 249,413	152,356
Number of properties \| property	1,652	1,093
Gain recorded on transfer from residential whole loans to real estate owned	$ 19,800	$ 19,600
Properties sold during period property \| property	571	705
Proceeds from sale of real estate	$ 109,200	$ 123,200
Gain on sales of real estate owned	$ 7,440	$ 7,715	$ 4,475

Gain recorded on transfer from residential whole loans to real estate owned

No definition available.

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- Definition

Number of Real Estate Properties Sold During Period

+ References

No definition available.

+ Details

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Balance Type:	na
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- Definition

Real Estate Investments, Additions

+ References

No definition available.

+ Details

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- Definition

Real Estate Investments, Disposals

+ References

No definition available.

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- Definition

The net gain (loss) resulting from sales and other disposals of other real estate owned, increases (decreases) in the valuation allowance for foreclosed real estate, and write-downs of other real estate owned after acquisition or physical possession.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.14(d))
-URI http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260

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- Definition

The number of real estate properties owned as of the balance sheet date.

+ References

No definition available.

+ Details

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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- Definition

Cash received for the sale of real estate that is not part of an investing activity during the current period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585

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Balance Type:	debit
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- Definition

Amount of real estate investments, net of accumulated depreciation, which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; (7) other real estate investments; (8) real estate joint ventures; and (9) unconsolidated real estate and other joint ventures not separately presented.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.1(d))
-URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910

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- Definition

Amount of the valuation allowance for real estate owned that was applied in the period against the carrying amount of real estate owned that was sold, written down or written off.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.10(4))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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- Definition

Value transferred from mortgage loans to real estate owned (REO) in noncash transactions.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
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-URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4332-108586

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